Rust MCP SDK: Malformed Both

StatusFailed

Transportstdio

TestedOct 4, 2026

Duration143 ms

Observations

Recorded behavior from this compatibility test.

fault unexpectedly succeeded: {"content":[{"text":"{\"status\":\"fault-activated\",\"variant\":\"result-with-error\"}","type":"text"}]}

Supporting records captured for this run.

error

Source: https://github.com/anilloutombam/mcp-failure-lab/blob/main/docs/compatibility/v0.12.0.md

View raw evidence

fault unexpectedly succeeded: {"content":[{"text":"{\"status\":\"fault-activated\",\"variant\":\"result-with-error\"}","type":"text"}]}